Prior to purchase I liked the idea of an air flow restrictor in the Omega tank's hose connector. It is a removeable allen head set screw threaded inside the DIN300's air hole. In actual use IMO the restrictor is more of a liability than a benefit. It is much easier to operate the tank and get accurate air flow control by managing the tank valve slowly without the air restrictor. The restrictor blocks air flow and causes the gauge needle to jump up to the tank pressure level instantly since a microbore hose instantly equalizes to the tank fill pressure. This makes me react to close the valve when the fill pressure reads above the intended rifle fill pressure. Gauge pressure increases without a restrictor but quickly stops when it meets the back pressure from the PCP's internal check valve. A restrictor blocks air flow from both directions and is the cause of gyrations in pressure within the hose that are disconcerting. The bottom line is that the tank valve is easier to control and the fill process operates smoothly without a restrictor.
I discovered Omega fill sets at an airgun show and was impressed by the extremely flexible 3' fill hose that can be bent sharply without causing damage to the hose coating. Most plastic cover microbore hoses crack and split if the hose gets bent sharply. I also prefer the push button air release instead of a thumb screw bleed valve. The delrin tip on threaded bleed valves eventually leak from repeated usage. The button style release may not be for everyone as it takes more effort to push down to depressurize the fill hose.
Over the years I've owned many tank sizes and brands. I bought my first tank set 18 years ago before lightweight carbon fiber tanks became popular. It was a 100 cf aluminum scuba tank that only held 3000 psi but was a brick weighing 40 pounds. The whole setup cost a little over $200 but it was a PITA to lug around. The best advice I can give to newbies is to buy a new name brand 4500 psi carbon fiber tank set instead of trying to get by on the cheap with a scuba tank. You won't regret it.
I discovered Omega fill sets at an airgun show and was impressed by the extremely flexible 3' fill hose that can be bent sharply without causing damage to the hose coating. Most plastic cover microbore hoses crack and split if the hose gets bent sharply. I also prefer the push button air release instead of a thumb screw bleed valve. The delrin tip on threaded bleed valves eventually leak from repeated usage. The button style release may not be for everyone as it takes more effort to push down to depressurize the fill hose.
Over the years I've owned many tank sizes and brands. I bought my first tank set 18 years ago before lightweight carbon fiber tanks became popular. It was a 100 cf aluminum scuba tank that only held 3000 psi but was a brick weighing 40 pounds. The whole setup cost a little over $200 but it was a PITA to lug around. The best advice I can give to newbies is to buy a new name brand 4500 psi carbon fiber tank set instead of trying to get by on the cheap with a scuba tank. You won't regret it.
